Active AutoWerke

Active Autowerke Maad Maxx - F8X BMW M3 & M4 Rear Exhaust Section - 3 Can Valved - Exhaust w carbon fiber over black tips (11-073CB)

Name: Active Autowerke Maad Maxx - F8X BMW M3 & M4 Rear Exhaust Section - 3 Can Valved - Exhaust w carbon fiber over black tips (11-073CB)
Brand: Active AutoWerke
SKU: 11-073CB
Price: 2944.05 USD
Availability: InStock

Usually ships within 24 hours

$2,944.05

~~$3,099.00~~ Sale $2,944.05

Product details

Vendor Active AutoWerke
SKU 11-073CB

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The Ultimate F8X BMW M3 & M4 Rear Exhaust System - now with valves

At Active Autowerke, it's not ONLY about making as much power as possible. For over 30 years, power has been the end result of improved performance due to our relentless desire to develop a refined, quality product. This philosophy behind our performance parts is best represented by one of the newest additions to our F80 BMW M3 and F82 BMW M4 collection.

The Active Autowerke F8X rear exhaust was carefully engineered to eliminate the unflattering sound of the factory M3 and M4 exhaust, while also allowing for optimum flow and resonance. Every effort was made in addressing the not so appeasing sound of the stock OEM exhaust, but in designing an exhaust worthy for an "M" car. We believe our rear exhaust combined with our mid-pipe offers the deepest sound and best performance of any other system on the market today. Available for both models, this axle-back exhaust gives your BMW the deep, throaty, growl a car of its caliber should have had from the factory! And NOW, after many requests from our dedicated customers, we are introducing a valved version of the ultimate exhaust which has been dubbed "Maad Maxx" by our team. We will update dyno charts later but this exhaust flows even better with its valved system.

See what actual customers are saying on BimmerPost!

***Before your order ships you MUST sign and return the Off Road Use Only Waiver available HERE:

Please email, fax or take a photo of the completed form. You can email it to your sales rep or to info@activeautowerke.com and you can fax it to us at (305) 253-8921***

Key features

-Made in the USA

-18+ WHP gain over stock*

-30+ LB-FT gain over stock*

-Quicker turbo spool

-Low, Deep Rumble

-Flex joints to reduce vibration

-Double-canned muffler to reduce resonance

-Each exhaust test-fit on our F8X Exhaust Fixture

-Guaranteed to fit all F80 BMW M3/F82 BMW M4

-Includes all necessary installation hardware

*When paired with Active Autowerke F8X Mid-Pipe

⚠️ California Proposition 65 Warning: This product may expose you to chemicals known to the State of California to cause cancer or reproductive harm.

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Project Incentives:	We reward enthusiasts who trust us with their major projects. Use these tiered codes at checkout to apply instant savings to your order: • AH25 — $25 OFF $500+ \| • AH60 — $60 OFF $1000+ • AH180 — $180 OFF $3000+ \| • AH400 — $400 OFF $6000+ • AH630 — $630 OFF $9000+
Fitment Guarantee:	Avoid the headache of the wrong part. If you are unsure about compatibility, contact us first. If we verify the fitment for your vehicle via email and it doesn’t fit, we will handle the exchange at no cost to you.
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Flexible Returns:	Unused items in brand-new, original packaging can be returned within 30 days. While standard refunds incur a 25% restocking fee, we will waive this fee entirely if you choose store credit or an exchange for your next upgrade.
Exclusions:	To ensure every customer receives brand-new, untampered components, parts that have been installed, modified, or used are non-returnable. Custom builds, special orders, and wheel/tire packages are considered final sale.

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Fitment Guarantee
Fitment guides and tools are helpful—but your car is unique! Some trims and options aren’t always listed, so if you want 100% confidence that a part will fit, our team is happy to double-check for you. We take the guesswork out of your purchase by standing behind our expertise.

Verify Your Build:	If this product doesn't list your specific vehicle data, simply reach out to support@autohousesupply.com. We will manually verify compatibility for you.
Our Promise:	When we confirm a fitment in writing and it doesn’t work for your application, we cover the return shipping and exchange it at no cost to you.

Questions? Send us your Year, Make, and Model via our Contact Form and we’ll get you a definitive answer so you can buy with confidence.

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Active Autowerke Maad Maxx - F8X BMW M3 & M4 Rear Exhaust Section - 3 Can Valved - Exhaust w carbon fiber over black tips (11-073CB)